Motor cultivator tractor



Nov. 9 1926.v 1,606,706

lE. A. JOHNSTON ET AL MOTOR cULTIvAToR TRACTOR Nov. 9 1926.

E. A. JOHNSTON ET AL MOTOR CULTIVATOR TRACTOR Filed March i5. 1920 5sheetsf-Sheet 2 fda/Jara Ada/77715077 Nov.r 9, 1926. 1,606,706

E. A. JOHNSTON ET AL MOTOR CULTIVATOR TRACTOR Filed March 15., 1920 5Sheets-Sheet Nov. 9,1926. 1,606,706 l l E, A. JoHNsTQN V|51' AL v MOTORACULTIVATOR TRACTOR Filed March l5, 1920 5 Sheets-Sheet 4gill/11111111.12:

Z6 1% l JZ? yw.

Nov. 9 1926.

I 1,606,706 E. A. JOHNSTON ET AL MOTOR CULTIVATOR TRACTOR -Filed Marchl5. 1920 25752977 arv' Patented Nov. 9, 19.25.

nowAien A. JOHNSTON, or" CHICAGO, AND CARL w. ivroT'r, on ROCK FALLS,iLLiNoIs, AssreNoias 'ro INTERNATIONAL HAiwnsrnn/COMPANY, A CORPORATIONor; Nnw

JERSEY.

Application filed March-'15, 1920. Serial No. 386,009. Y

Our invention relates to tractors and particularly to tractors adaptedfor use with a wide variety of agricultural implements and for generalutility purposes.

-An object of ourfinvention is to provide a control is particularlyadapted .to propel a cultivator between rows of growing crops, thecultivator, as well as other implements propelled by the tractor, beingattached to the front of the tractor in full View of the vThe tractorcomprises a main frame 10, tri-V operator and under his direct control.

A further object is to provide a tractor adapted to propel various typesof agricultural implements and to effect a short turniiio movement ofthe implement and tractor.

A still further object is to provide a tractor havinga belt or endlesstrack drive in which the track is angled power driven,

means for steering the tractor. i Another obj ect is to provide atractor that'- will be both drivenand steered by power dei'ived from asingle power unit.

Another objectV is to lprovide a power steered tractor in whichthesteering means and driving` means are operatively independentalthough bothv derive Apower from the sameV power unit. Y

An additional object is to provide a tractor that is normally powersteered butis pro vided with a manual steering means con trolled by theOperation of thepower steering means.

The aboveand other objects will'be parent from the following descriptionof our invention when read in connection with the accompanying drawingsin which: Fig. l is a side elevation of tractor embodying ourinvention,`thefrontwheel nearest the observer being omitted.- g Fig. 2is a plan view, the fuel tank shown in Fig. 1 being" omitted for thesake of clearness.

Fig. 3 isa sectional view of the power transmission means connecting theengine to the tractor driving means.

- F ig. 4L shows a detail of the transmissionz assembly of Figure 3. Y

Fig. 5 is a vertical sectional view of the tractor driving and steeringmeans taken on the lline AfA Fig. 1.

Fig.- 6 is a detail view of a part of the steering mechanism taken onthe rline B--B Fig. 5. 1 i

f Fig. 7 is a sectional view of the steering gea-r, the section beingtaken on a substan-v tially vertical plane indicated by f the line C-Cin Fig. 2.

Fig. 8 is a diagrammatic View showing the arrangement of gears fordriving the clutch gears of Fig. 7 in opposite directions. I

Referencev will now be hadl to Figs. 1 and 2foil a general descriptionvof our invention.

angular ingeneral Outline and preferably formed from light channels orother suitable structural shapes. kThis triangular frame islsupportedat'its front side by two support- 24 andggussetsl 25,-Fig. 2.The braces and.

rodsl also serve-as supporting members for mechanism to be describedlater. vThe third angle of the frame-which is disposed at the rear issupportedy by the traction and steering member 13 shownin detail in 5,The tractor` is driven and steered by power derived from an internalcombustionl engine 14 of usual construction.' 15 indicates a fuelv tankfor theengine which for the sakeof cleariiess isfshown only in Fig. 1.16'indi- Oates the usual radiator supplying cooling water to the jacketsofthe engine cylinders.`

Power for driving the tract-or is transnii 'ted from oneeiid of theengine shaft tothe ti'action Vmember through the transmission assembly17 shownl generally in Fig. 2 and in detail in' Figs; 3 and-4; Power forsteering.

the tractor is Ytaken from the opposite endV oftheengine shaft-and istransmitted to thev steering column'v (to `,be described later) throughthe steering'gear assemblyl 18,- 19 I indicatedv generally in Fig. 2 andspecifically illustrated byFigs. 6, l7 yand 8. The engine,

loo.

fuel tank, radiator, transmission assembly,

traction drive and steering assemblies referred to above are all securecto or carried by thetractor frame.

The supporting wheels ill and,` l2 arey nounted on horizontal axles 26,26 whichare integral withyertical steering shafts 27, 27

jcurnaled in ycastings 28, 28 secured to the frontk of the r"main frame.Steering arms 29, 29 rigidly. secured to the upper `ends of theverticalshafts are connected by a steering link or yoke 30, which is normallyheld in stationary cr inoperative position by a pin- 3l engaged in aslet or hole in the yoke as best shown in Fig. l. f v n VThe pin 3l isheld 'in engagement with the apertured yoke 30 by a roller 3].engageable with a cam or eccentric i iember 33A fixed to a shaft .Sejournaled- .in the upper end of a casing 35' supported on the upper endof a steering column or.V post i3d. A spring 32 actst'o keep the pinoutof engagement with the yoke 30 when the cam is not acting to 'i Vholdlthe pin down. ,Journaled in the steering column 36 is a Yhandoperatedpower steering control wheel 37 having chain and sprocket connection 38with the power steering mechanism t-o be described later. ,This

hand wheel'37 turns a shaft 37a journaled inV the casing which shaft,through reduction gearingivithin the casing, drives shaft 'Stat muchreduced speed. Thus, it will be seen the. vhand control wheel 37is socon- `nectcd*with the lshaft 34C thatitwill haveto beVgivenacertain.number of turns before the pin 3l can withdraw frorntheYyoke '30; This initial independent rotation ofrwheel 37 is necessary,as willlater appear, for the purpose of immediately initiating operationkof power steered propelling means at `the rear end of the tractor,sothat the same may move substantially through'Y an Vangle olf l5degrees either te theV left or tothe right before the pin 3l iswithdrawn. An indicator vane 88a` may be mounted as shown to indiy catetothe operator the angular position ofk the propelling means.

Referring to Fig. 2,'pedals 39, 39,fconstitutinginanually operatedsteering means are shownfconnected to sheaves 40, d0 pivot-Yally*mounted on` the fianieto each of which is secured one end of achainor cable 4l, 4l" passing over sheaves 42, 42 and secured at lV,their opposite ends to ears or lugs on the Y yoke 30. `When thepinv 3lis raised to re-` leasek the yoke 30, the yfront wheels '11, l2

`1nay be steered by means of the pedals 39,V

39 by the operator occupying the seat 43 or k turning as willpresentlybe` apparent. v v lfef-erring again to Figs. l and'2, .blindicates asupplemental frame pivotally connected at 4:5 to a bracket carried bythe main frame. The front end of this frame is adaptedfor attachment tothe implement to be propelled by the tractor and isvertically adjustableby means of the chains or cables 46, 46 passing over pulleys 46a, 46hand secured atv oneend to the supplemental frame. at 47, 47, the otherend beingsecured to andwin ling on thel drums d8, d8 keyed to the shaft49. rlChe shaft 4:9 is journaled in bearings carried by the tractorframe l0 and is adapted to be rotated to raise or lower the supplementalframe del by power derived from the -engine. "Power is transmitted tothe shaft 4:9 through 1a clutchassembly mechanisin housed in 'theycasing 50 andshownwonly generally in thisl application. 'lheflever 5land link 52 are adapted to shift the clutch within the casing 50 torotatefthe shaft 49 in eitherfdirection to raise or lower the frame Vorto release the clutchso that the' frame legis held in any adjustedposition.

Carriedl by the framellll is a pewershaft adapted to transmit power tothe cutter bar ofa mower, binder, or other implement propelled by thetractor "and requiring n power for its operation. rlhis shaft is drivenfrom vthe main engine 14 through the clutch assembly mechanism in thehousing 50, the lever-54 being adapted tocause engagement or release ofthe clutch. The universal coupling 55. in the shaft v53 permits thisshaft to `be raised orr lowered with the supple- .mental frame, thepivot ofthe coupling be# ing inl alignment with Y the ypivotal sup-,

ports 45.

Vshile we have disclosed'the vsupplemental frame, power driven means forraising and` loweringit, and the implement driving shaft in connectionwith our tractor, these features (forni no part of the present'inventionbut are illustrated to show the complete' cornmercial fcrin of thetractor.

Having described our vinvention kin a genera-lway, we will'now referto.Figs.y 3 to 8 for `,detailed description of thepower drive and steeringmechanisms.

Power transmission assembly.

secured to l the engine Acrank shaft`57.

The inainfclutch 58 isfoperated by a forked arm 59 engaging a sleevejtiOin ytheruaual manner. The arin) is keyed or otherwise secured to loneend 'of a short vertical shaft 6l journaled in theltransinission'housingi7;

and having securedat its opposite' endtheV clutch operating cam 62. 'Aleverf carry ing a cani engaging' roller, (Fig. '2) is giver: edat oneendto the casing 17 in positien so Dil that the roller will engageand'operateth'e cam 62 and has .connected to its lother Vend one end ofa link or rod 64.' The other end of the linkl is operatively connectedto the* clutch lever 65 mounted on the vtractor'. 'frame convenient tothe operator. When the lever 65 is in its forward position as shownin'Figs. 1 and- 2,'the lever 63 islever 65 is shifted rearwardly,the'lever 63 is rocked clockwise (Fig. 2) to release the cam 62 topermit theV clutch springs to engage the clutch discs.

i The main clutch transmits power from the engine shaft tothe shaft 66lcarrying the gear 67 meshing with a gear 68 rotatably mounted on astubshaft secured in a side wall of the transmission casing. The gear i68 meshes with a gear 69 keyed to the power shaft 70 journaled in thecasing and carrying at its outer end a pulley 71 adapting the;

tractor for use asa power plant. Y

' Parallel with the power shaft 70 isthe tracytor drive shaft 72carrying at its outer end a brake drum 73 and extending at its otherendV through the transmission casing 17V into the traction housing 13(Fig. 5) The shaftk 72 carries within the transmission-casing a gear 74splined thereto and `aA gear 75'keyed The gear 74 is adapted Vto bethereon.

. shifted by the lever 76 and link 77 (Figs.

l and 2)y into or out of engagement with gear 69 for high speed driveofthe tractor,

the transmission providing fortwo speeds forward vand one reverse aswillnow 'be described. Y

A stub shaft 78 (see Fig. 4) mounted in the transmission casing hasrotatably mounted thereon two gears 79, 80 integrally formed or rigidlysecured together, the gear 7 9v being in meshL with the gear 75.` A gear81 splined to the power shaft 70 is adapted to be shifted by the lever76 and link82' into engagement vwith the gear 7 5 forlow speed drive ofthe tractor or into'meshwith the gear for reversedrive. Asingle lever 76is employed for shifting the gears 74 and 81, it beingnecessary to moveone'of the gears into neutral position before the-other can be engagedwith its cooperating gearv as is usual in thev art.

The brake drum 73 referred to above has associated therewith 4a brakeband Vopera? tively connected to the rod 64 of the clutch operatingmechanism.y When vthe lever 65 is in its'forward position and the,clutch dis# engaged, the brake b-and will'be tightened 0u-, the drum 73to quickly `stop vthe,r tractor.'

Since the connections Abetween the brake andi rod @me familiar to um@Siaiiea in the art, they have been omitted from the draw ings to avoidneedless.complications. Tmc-tor darlo/ng mechanism.

Referring to Fig. 5, the tractor driving l and steering housing 13is-secured to or formed integral .with a vertically disposed casing 83Vsecured to the tractor j frame. Journaled withinthe vertical casing isthe tubularsteeringzpost 84 having secured atits upper end the segmentalworin wheel 85 and provided at its lower Vend with the flangesV 86, 86to which 'are` secured by rivets or-otherwise the vertical side. platese7, si.

`These side plates form a lsupporting frame',y for the rear end of thetractor-and transmit.

the driving thrust of the endless trackto the main tractor frame. Theside plates are provided with three alined pairs of bzearings in whichare journaled the shafts 88, 89., 90 (Fig. 1'). YThe rear shaft 90. isprovided midwayv between its ends with 'a driving sprocket 90 (Fig. 1)adapted to engage and;

drive the overlapping plates 91 forming the endless track drive of thetractor. The shaft,"-

89 has mountedethereon a pair of idlersor supporting rollers for thetrack Y as best shown in Fig.` 5. The f0rwardfshaft88` carries a7centrally disposed idlerlsprocket 88a adapted to engage the track' and'adjust-v Y able forwardly 4and rearwardly by'means of theadjustingscrews 92 (Fig. 1) to maintain'the proper tension in the track. VThere lare two of the adjustable screws 92,-one on Y each-side plate 87,87. Tothe plate 87 islsecured a gear casing 93 into the lower end of lwhichprojects one Iend of the drive sprocket shaft A90. A gear (not showninthe drawingsbuthoused within the casing at 94) iskeyed'to this endofthe shaft 90 and meshes with an idler 95 journaled on a roller bearingon the supporting shaft 96.'. rlhe idler is driven by a pinion 97secured to one end of a shaft 98 mounted in bearings sup.`

ported between the flanges'86, 86of the steering column. The oppositeend of the shaft 98 carries abevel gear 99 meshing` with a bevel pinion100 on the lower end of a vertical drive shaft 101 journaled within andconcentric with Vthe vsteering column. The upper` endof the verticaldrive shaft has keyed thereto ya bevel gear `102 meshing with a bevelpinion 103 von' the horizontal drive shaft 72. The shaft 72 ,isjournaled at'one end in a bearingy 104 carried by the steering'- sector8,5 andis provided with two` unil'` y versal couplings 105 for a purposeto be de-v scribed later. Y Y y, From the abovedescription it isapparent that power-is transmitted from the vengine V14 to the tractionyshoes 91 to Vdrivefth'e tractor through f the vmechanism specifically"dis` closed in Figs.v 3, 4 'and 5and that-the tractorhas two speedsforward andone reverse. 'It

is also apparent that when thetransmission gears 741 and 81 areinneutralPosition, ther shaft 7 0 carrying the belt pulley 1 will be driven andthe tractor may then be used as a power plant tooperate rbelt drivenmachines of various kinds. p Power steering mechanism. Y

Attention .is now invited :to-.the power steering mechanism andparticularlytouligs. 6, 7 andfS. In Fig, 7.the2p1n1on 1061s securedto ashaft 167 driven from the rinterf ynal combustion engine ltat thesid'e'opposite the ily wheel 56 in Fig. 3. vThe pinion drives an idler'108 which in turn drives a Y gear 169 keyed to a shaft l110adapted;'to

-fgramniatically in F.ig. 8). drives the clutch gear 116 ina-directioniopposite to vthe direc` tion of rotation of the clutchmember V112. The clutch member or gear 112 is mounted 'on' a rollerbearing within,thesteeringgear Y y engagement with the clutch face ofggear 116 drive the vimplement driving shaft 53 prev iously referred to.

diete-gears *113. V1141: and .115l A(shown diahousing'18 and dat oneside engages aV thrust bearing 117 and atv its opposite-side. isada-pted to be engagedby one disc 118'of a-rtwo vway disc clutch, theother clutch .disc 119 beingadaptedto engage aclutchl-f-ace on Vone sideof the gear 116, the oppositeside of'ge'ar 1164 engaging a thrustcollar. 120 keyed -to 'ffthe clutch operating shaft 121. Thej'discs f 118 and'119 are formed integral with a sleeve 122 having screwthreaded'engagementwith the shaft 121 and having a sprocket 123se-4cured theretoatthe end opposite the clutch discs; Referring toFigG, thevsteering ,seg-

ment 85 has .meshing therewitha` .worm 121i` Vrcarried by the. shaft 125vjomnaledinfthe lcasing 19. The shaft 125-projects at. one

end beyond the casing andfcarries asprocket 126 Ydriven by a chain 1272.)/-fronifthe sprocket 123 (Fig. 7). TheV` clutch .operate ing shaft121 is connectedby a universalcoupling 128 to thesteering'sliaft.129igs. 1 .and r2) Y which `has keyed near its forwardend a sprocket 130'V cooperating'with-the chain 38 andv control wheel 37described in kconnection with the manual steering means.

Assuming now that; the tractor is inf-'nio- 'tion propelling animplement Yand the. operator ,wishes to turn -to the left, the controlwheel 37; will be rotated't'o Athe left (oriconnter clockwise) whichthrough the Vchain 38 sprocket 130y and shaft 129 will rotate clutchshaft V121` in the same direction. e .Owing to 'the screw threadedengagement pof'thefshaft =121Vwith the clutch sleeve 122,1 the'disc-119will vloe shifted to the right; (Fig.v 7 )y into which iscontinuonslyrotated from thek Ashaft 107` 4and intermediatejg gears. inleft handdr- 'lhepinion 106 meshes 'gwith and directlydrives aclutchgear 112,

' and through this clutch .gear ,and intermef were@ rection or'counterclockwise when viewed from the right in "F ig. 7 Engagement of'`the vclutch members 119 and 116 rotates the,

sleeve '122 and its ksprocket 123 in the Asame direction that ,thelshaft 121 and control wheel 'areturned7 thus driving the sprocket 126and worin'124i;v The inclination of the worm is such that left` handrotation'of con-V trol `rwheel `37 rotates the steering worm wheel 85 toangle'the traction device to .the

right.V AThe rear end of the, tractor willthen tralveltoy the rightabout the front support-v ingwheels to effect a left turning'movement.VIt is'v thus seenv that alefty offthe tractor. hand rotation lofthecontrol .wheel Causes engagement ofthe clutch members V119 and 116 to.efecta left handtnrn ofthe tractor land conversely a right hand.rotation of the control wheel will Vcauseengagement of theL clutchmemhers 118 and 1,12-to canse a Vright hand turnl of the tractor.

n Win be noaa rmmfrig 7 that which;

wheel 37 until the tractor driving means f has been ang-ledsufiicientlyto make a turnV of the desired radius. Ifva short turn isdesired, as when the tractor is driving a:

cultivator and has reached-theend ofva row and-"1t is necessaryto'makela turn of'180O to 'enter the'tractor between the next adjacentrows,'thel control wheel'37 will'loe ro tated and the clutch-memberskeptin engagement untilthe tractor drive isangled, Y

through approximately 45o at which time the locking pin 3l-previously.described will beraised to release the yoke 30. .This-releasesthemannally operated steering mechanilsm for the-front wheels 11 and 12Apermittingthem to be angled toeffect a very short quick turnofthetractor. In practice it has been found that our tractor can turnwithin{substantiallyj its' own length through cooperation ofthe twoVsteeringv means. Then the steering sector 85 is turned. by

the worinv 121,it carries with it the tractor drive shaft 72 and rotatesthe steering post 84,'-vertical drive shaft 101 and all of thetractor.drivingl mechanism supported by the Y frame 87, 87. Theuniversal couplings'lO in the 1 shaft -72 and lbearing 1041" areprovidedV Y to makeY ossible this tnrninO movement. It

. &

will be vunderstood lof course' that whenthel steering mechanism 'is 1noperation the tractor is also beingdriven by powertransmitted throughshaftg72 Vand gears103, 102.

VWhenthe-"verticalYshaft 161^and gear 102y are` angled in thesteeringoperation ,'Of, the

tractor, there would be relative rotation or planetary movement betweenthegears 102 and 103 except for the universal couplings in shaft 72.-These couplingsl permitthe shaft to swing with thev steeringsectorwithoutchanging the relative speeds of the shafts 72 and 101.Except for this construction,

,the steering mechanismvrwould be forced to angle the tractor againstthe power of the engine when turning in one direction which would throwa heavy overload on the clutches 118 and 1119.If the `bearing 104 werecarried by the casing 413 and the shaft '72 were continuous, then theshaft 101 and What we claim as our invention and desire to secure byLetters Patent is: A

1. In a tractor the combination of a frame, carrying means supportingronepend ofthe frame, traction` means4 supporting the other end of theframe, an engine mounted on the frame, transmission' mechanism betweenthe lengine and traction means for driving the tractor, steeringmechanisml between the engine and traction means for power steering ofthe tractor, manually operated means for,

steering the carrying means, and means controlled by the angularposition of the traction means formalring the manually operated steeringVmeans operable or inoperable. 2. In a tractor, the combination of amain trame, spaced carryingl 'means supporting i one endof the frame,.tractionmeans supporting the other end of the frame and locatedon thelongitudinal median line thereof, a power unit for driving the `tractionmeans, steering means driven by the power unit for steering thevtraction means, manually operated means for steering the spaced carryingmeans, means normally rendering the 'manual steering means inoperative,and.

means for controlling the power steering means including means forreleasing the manual steering means. A l A 3. A tractor comprisingincombination a frame, supporting means for one end of the frame,vtraction means for the other end of the frame, an engine on the frame,driving connections between the engine and traction means, steeringmeans for the supporting means, steering means for the traction means,and means connecting said two steering means whereby one of the meanswill be 'operative or "inoperative depending on the position of theother steering means.

4. A tractor comprising in combination a frame, supporting means forlone end of the frame, traction means for the other end yof the frame,an engineon the frame, drivsteering kmeans whereby one. of the means iwill beinoperative until the'othe'r means has been turned through afpredetermined angle. v n n v w .i 5. A tractor comprising incombinationa frame, support-ing means for one end :of

rthe frame, steering means associated withV said., supporting means,traction means supporting the other end of the frame, power meanscarried V'by' the frame, transmission mechanism between the powernieansand traction means to propel the tractor, power driven steeringmechanism for angling the traction means to normallyfsteer the tractor,

manually operated meansfor engagingand disengaging ythe power drivensteering' means, and connections between the manually operated means andthe steering means associated with the supporting means.

6.7In Aa 'tractor the combination of a frame, supporting means for oneend of the frame normally inoperative means for angling the supportingmeans, traction;v

meansv supporting the other lend of the frame, a power unit carried bythe frame,

driving connections .between the power unit and traction meansforfpropelling the' tractor, steering mechanism between the power unitand traction meansadapted to angle the latter `to normally steer thetractor, manual#V Vly operated meansforthrowing the steering mechanisminto .and out of operation, and connections Vbetween thermanuallyoperated y ,means and thel first mentioned angling means ,adaptedtorender the iirst mentioned angling Ameans operative lto eect a. quickturning movement of the tractor.

7. In a tractor the combination of a frame, carrying means supportingthefront kend of .thel frame, ,normally inoperative steering means for thecarrying means, propelling means supporting -therear end of the frame,steering" means associated with the propelling means for normallyAsteering the tractor, and means controlledby the angular operativeposition. .ofthe propellingfmeans for rendermeansl for the carryingmeans,` traction means supporting the other end of the frame, steeringmeans for the traction means, manually operated controlling means forthe :traction steering means, and means 'associated with the twosteering means whereby continued operation of the conf ,trolling meansvwill render: the first named i vsteeringv means operative( iii' i ,9.yIn af' tractor A the combination of aframe, p'ivotally mountedsupporting means for' the front end of the frame, a yoke' con-,n'ectingthe supporting means`,vlooling means for the yolre,'tra'ctionmeans supporting the frear end-of the frame', power driven steeringmeans V"for said traotionmeans, manually operated controlliii'gmeansfoi-the steering means and connectionsbetween ythe Vcontrolling meansand locking means whereby operj ation ofthe controlling means mayoperate the locking means torelease the yoke and Cil permit *anglingmeans. Y Y Y l0.- In a tractor the combination of a triof `they frontsupporting f angularl framehaving one,y side disposed toward the front,supporting means for the 'front side,va supplementalV frame pivotally"connectedto the triangular frame and supporting the rear angle thereof,an 'endless --trach carriedby the supplemental frame for propelling thetractor, a power unit carried by the triangular frame, powertransmissionV Amechanism between the power unit and end- Avless track,power steering mechanism between the power unit and supplemental frame,Vand,independent manually operated means ,forV controlling: theVtransmission and steering mechanisms'. t

1l; In a tractor the combination of a triangular frame having one sidedisposed `toward the front, supporting means for the front side, asupplemental frame pivotally `connected to the triangularl frame andsup- Y portingthe` rear angle thereof, Aan rendless track carried by.the supplemental frame for propelling the tract-or, a power unitcarriedby the triangular frame and having a power shaft, transmission mechanismadapt-A ed to drive the endless trackV from one end of thev power shaft,steering mechanism adapted to be connected to the other end of 1 thepower` shaftto angle the supplemental Yframe, and independent meanscontrolling the transmission and steering mechanisms. i l-12.In a motorvehicle the combination of a main frame, a power unit carried thereby,

carrying means supporting one end 'of-the frame, traction meanssupporting the lother mend of the frame', steering mechanism for theltraction means, a vertical drive shaft for `the traction means, and aflexible power shaft between the power unit and drive shaft, one end ofthe power shaft being carried by 'the steering mechanism whereby the vigoegvoe ,pow-'et staaf-wint@ angiea'iwhsaia vehicle is turned.'

Y 13. Ina motor vehicle, afmain frame, a power unit carried thereby, asupplemental frame connected by a vertical pivot to the y main frame andsupporting one end thereof, propelling means carried by the supplementalframe, power transmission mechanism including a flexible powershaftbetween the power unit and propelling means, steering mechanism adaptedto angle the supple- 1 mental frame on its pivotal connection to steerthe vehicle, and a' connectiony betweeny the steering mechanism andpower. shaft whereby the shaft isl angled with the apple mental frame.

14# In a'tractor', theV combination of a main frame, spaced carryingmeans supporting one end of the'frame, traction means sup-` porting theother end of they frame, av power unit mounted on thefrune,l a verticaldrive shaft for transmitting power to the trac-V tion mea-ns,` ahorizontal flexiblev power shaft fortransmitting power'y to the driveshaft, a steering post c'o-axial with the ydrii'feshaft and supportingone-end of the power shaft, means connecting the steering post with thetraction means, and means for angling the and traction means' to, steerthe ingpost co-,a-Xialwith the drive shaft and.l

having a lbearing supporting the power shaft, means for angling thesteering post and traction meansin-a plane parallel to the power shaft.

16.1 In a tractor, thecombination of amain fra-me, traction meanssupportingone end of the frame, a drivejshaft forrthe traction j`means`, a flexible power shaft disposed` at right angles to theaxis'ofthe' drive shaft, gearing connecting the shafts, and means forturning the traction neans and gearing about the axis of the 4driveshaft to steer the tractor. Y Y

Inl testimony whereof we aii'ix our signatures.` l

y EDWARD A. JoHNs'roN;

voAeL w. Morir., i

